Stone-cutting machine.



E M. KING.

STONE CUTTING MACHINE.

APPLICATION FILED NOV. 27, 1915.

1,209,727, Patented Dec. 26,1916,

3 $HEETS-SHEET 1.

E. M. KING.

STONE CUTTING MACHINE.

APPLICATION FILED NOV. 27. 1915.

Patented Dec. 26, 1916.

3 SHEETS-SHEET 2.

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E. M. KING.

STONE CUTTING MACHINE.

APPLICATION FILED NOV. 27. ms.

Patented Dec. 26, 1916.

3 SHEETS-SHEET 3.

EDWARD M. KING, OF MILFORD, MASSACHUSETTS, ASSIGNOR TO KING GRANITE MACHINE COMPANY, OF MILFORD, MASSACHUSETTS, A CORPORATION OF MAS- SACHUSE'I'TS.

STONE-CUTTING MACHINE.

Application filedNovember 27, 1915.

T0 all whom it may-concern Be it known. that. I, EDWARD M. KING, a citizen of the UnitedStates of America, and a resident of Milford, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Stone-Cutting Machines, of which the following is a specification.

This invention relates to stone working machines and has for its object the production of a machine of this character which is. adapted to be propelled over stationary tracks along one side of a stone the face of which it is desired to finish.

Another object of the invention is to provide a traveling machineof this character with av revoluble wheel carrying a plurality of rotary cutters which may be moved toward and from the outer face ofsaid wheel and to any, desired angle relatively thereto.

The invention consists of' certain novel features of construction and arrangement of parts which will be fully-understoodby reference to the description of the drawings and to the claims hereinafter given.

Of the drawings: Figure 1 represents a plan of a machine embodying the principles of the present invention. Fig. 2 represents a vertical longitudinal section of the same, on line 22on Fig. 1. Fig. 3 represents a transverse vertical section on line 33 on Fig. 2. Fig. 4; represents an elevation of one of the cutter-carrying revoluble wheels. Fig. 5 represents an elevation of'a portion of one of said wheels, partly in section, and showing the adjustable supports'for the'rotary cutters. Fig. 6 represents a. sectional detail of the same, on line 66 on Fig. 5, and Fig. 7 represents a detail to be hereinafter described.

Similar characters designate like parts throughout the several figures of the drawings.

In the drawings, 10 is a supporting frame having secured to the underface thereof a plurality of flanged wheels 11 adapted to travel along the stationary tracks 12 in a straight path. Secured to the upper face of the supporting frame 10 is a weighted frame 13 provided with alined hearings in which is mounted a revoluble shaft 14 to the opposite ends of which are secured the wheels 15. Centrally disposed between the wheels 15 andkeyed to the shaft 14: is a gear 16 with Specification of Letters Patent."

PatentedDec. 26, 1:916.

SeriaINo. 64,186.

theteeth. of. which mesh the teeth of a pinion 17 secured to a shaft 18 mounted in suitable hearings on the frame 13. One end of the shaft 18 is provided with the pulley 19 to which rotary movement is imparted by a belt 20passing around a small pulley 21 upon. the shaft22 of a suitable electric motor 23" or some similar device. The pulley 21] is on one end of the shaft22 while on its opposite end is a similar pulley 24 by which rotary movement is imparted through the belt25 to the pulley 26 mounted upon a transverse shaft 27. This shaft 27 has mounted thereon a pinion 28 the teeth of which mesh with the gear29 keyed to a rotaryshaft 30 mounted in bearings on the supportingframelO. Theteeth of the gear 29"engage with theteeth of a stationary rack 31 and as the shaft 30 is rotated by means of the'motor 23 it is obvious that the carriage or supporting" frame 10 will be moved in a straight path overthetracks 12 ineither direction in accordance. with the direction of rotation of the shaft 30. The shaft 27 has also secured thereto a pulley 32 operating through the medium' of a belt 33, a: blower 34: of any well-known construction, this blower being provided to remove the dust during the stone finishing operation.- Each.

wheel 15'is providedwith a plurality of pins extending through the rimthereof and threaded thereto so that by turning either of said pins 35 it will be moved lengthwise relatively to the face of the wheel 15.

The ends of each pin 35 extend considerablybeyond the parallel faces of the rim of the wheel 15. Each pin extends through the bifurcated or forked support 36 as shown in Fig 6-ofthe drawings, the outer end of the pin being provided with the head 37' which bears against the outer face of the support 36. while the opposite end ofsaid pin is threaded and has mounted thereon the washer 38 and check nut 39, while a pin 39 drical hub 49 in which is mounted a sleeve 50. The block 45 has threaded thereto a clamping bolt 51 which may be loosened to permit the arm 48 to be moved endwise in the slot 47 and to permit the block 45 to be rotated about its axis relatively to the support 36, thereby moving the arm 48 to any desired angle relatively to the outer face of the wheel 15. When the arm 48 has been moved lengthwise and about the axis of the block 45 sufficiently to adjust it to a desired angle relatively to the wheel 15, the clamping bolt 51 is operated to force the rear face of the arm 48 against the face 46 of the support 36. The same operation of the clamping bolt 51 will force the block 45 outwardly so that the cone-shaped peripheral portion 44 thereof will impinge upon the conical wall of the opening 43 and lock the block 45 and the arm 48 in their adjusted position.

The block 45 is provided with an index 52 which coacts with the graduations 53 on the face 46 of the support 36, thereby making it possible to immediately position the arm 48 at any predetermined angle. The sleeve is provided with a head 54 bearing against one end of the cylindrical hub 49 While the other end of said sleeve is surrounded by a washer 55 and is threaded to receive a nut 56 and check nut 57 by which said sleeve may be clamped securely in position in the said hub 49. e

A shaft 58 extends through the sleeve 50 and at one end is provided with an enlarged conical head 59 on which is mounted a rotary steel cutting disk 60. Between this disk 60- and the head 54 of the sleeve 50 is interposed a washer 61 surrounding the shaft 58 the opposite end of which is provided with a cotter pin 62 extending therethrough to prevent the displacement of said shaft 58. This construction is clearly shown in Figs. 5 and 6 of the drawings. Preferably when the machine is in operation all of the cutting disks 60 mounted upon one of the wheels 15 are positioned at the same angle relatively to the outer face of-said wheel 15, but it is obvious that for various classes of work the 'angularity of these disks maybe changed at will. The cutting disks 60 may be located in the same cutting plane if desired, or each cutting disk may be adjusted relatively to the others so that duringthe rotation of the wheel 15 one cutting disk 16 will remove a certain amount from the stone and the next succeeding cutting disk will remove a further amount from the stone in a dliferent plane.

' Anynumber of cutting disks 16 may be mounted upon the wheels 15, these cutting disks being equally spaced around the rim thereof and preferably the disks on one wheel are positioned intermediate to the disks on the other wheel in order that there may be a continuous cutting as the two wheels 15 rotate, thereby distributing the strain evenlyover the entire machine.

When it is desired to locate the cutting disks 60 in different planes relatively to the outer face of the rcvoluble wheel 15 the pin 35 is rotated sufliciently to cause the required movement of the support 36 in a path perpendicular to the front face of the rim of the wheel 15.

The tracks 12 and the rack 31 are mounted upon a suitable framework 63 which also has mounted thereon suitable supports 64 on which the stone 65 to be operated upon is mounted. The weight of the stone may be in some cases suflicient to prevent any displacement thereof during the cutting or finishing operation, but preferably'the stone 65 is clamped to the supporting members 64 in any well known manner.

If desired, provision may be made for supporting the stone upon a movable table 66 as shown at the right of Fig. 3 of the drawings. The table 66 is pivoted at 67 and may be inclined as desired by the operating wheel 68, this operating wheel being mounted upon a shaft 69 having a bevel gear 70 meshing with a similar gear 71 on a shaft72, the opposite ends of which have keyed thereto pinions 73 each meshing with a rack 74 on a vertical support 75. When the wheel 68 is turned the vertical support 75 beneath the table 66 will be raised and lowered, causing said table 66 to move about its pivot 67 into the desired inclined position.

The supports 75 and the supports 76 carrying the pivot 67 are mounted in vertical bearings 77 in the frame 78 adapted to be moved horizontally on the tracks 79 by means of the revoluble screw 80 threaded to the nut 81 formed upon or secured to the table 66. The screw 80 is provided with a head 81 engaged in a socket 82 adapted to prevent end movement of the screw 80 while permitting the free rotation thereof. The lower end of each of the supports 75 and 76 is provided with a female screw thread which is engaged by a vertical screw 83 to the lower end of which is secured a pinion 84, the four pinions 84 all meshing with a central gear 85. One of the pinions 84 has secured to its hub a bevel pinion 86 meshing with a gear 87 adapted to be rotated by the handle 88. As the gear 87 is rotated by means of the handle 88, rotary movement will be imparted to the gear 85, and all of the'pinions 84 will rotate in unison and turning the screws 83 to which they are secured, the raising and lowering of the stone supporting table will be attained. It is ob vious these various adjustments the stone placedupon the table 66 may be treated in many different ways and have surfaces thereon finished at any desired angle or curvature.

An adjustable gage 90 is mounted upon the frame 63 to indicate the lowest point in the path of movement of the cutting disks 60 as it revolves with the wheel 15.

When the traveling carriage has moved sufficiently to disengage the cutting disks from the stone, provision can be made for reversing the movement of the motor and cause the carriage to move in the opposite direction. As any form of mechanism adapted for this purpose may be used, and such mechanism forms no part of the present invention, it is not shown or described.

This makes a very inexpensive device for cutting'and dressing stones which is very effective in its operation. The. many advantages of this invention it is believed will be fully understood from the foregoing description.

Having thus described my invention, I claim:

1. In a machine of the class described, the combination of a revoluble wheel; a support mounted on said wheel; a radial arm mounted on saidsupport and adjustable outwardly from the plane of rotation of said wheel; and a rotary cutting disk on the outer end of said arm with the cutting edge outside the periphery of said wheel.

2. In a machine of the class described, the

combination of a revoluble wheel; a forked support mounted on said wheel and secured thereto by a pin parallel to the axis of said wheel; an arm mounted on said support and adjustable outwardly from the plane of rotation of said wheel; and a rotary cutting disk on the outer end of said arm.

3i In a machine of the classdescribed, the combination of a revoluble wheel; a support adjustably mounted thereon and movable in a direction parallel to the axis of said wheel; an arm pivotally mounted on said support; a rotary cutting disk mounted on the outer endof said arm; and means for clamping said arm in adjusted position.

4. In a machine of the class described, the combination of a revoluble wheel; a support adjustably mounted thereon and movable in a direction parallel to the axis of said wheel; an oscillating block on said support; an arm radially positioned on said block; a rotary cutting disk mounted on the outer end of said arm; and means for clamping said block in adjusted position.

5. In a machine of the class described, the combination of a revoluble wheel; a support mounted thereon having a conical opening therein and adjustable transversely of said wheels block fitting said opening in said support; an arm radially positioned on said block; a rotary cutting disk mounted on the outer end of said arm; and means for clamping said block in adjusted position.

6. In a machine of the class described, the combination of a revoluble wheel; a support mounted thereon having a conical opening therein and adjustable transversely of said wheel; a block having a flaring end fitting said opening and provided with a slot perpendicular to said axis; an arm mounted in said slot; means for clamping said arm and block to said support in adjusted positions; and a rotary cutting disk on the outer end of said arm.

7. In a machine of the class described, the combination of a revoluble wheel; a support having a conical opening therein and so mounted on the rim of said wheel so as to be adjustable transversely thereon; a block having a flaring end fitting said opening and provided with a slot perpendicular to its axis; an arm mounted in said slot; a single means for clamping said arm and block to said support in adjusted positions; and a r0- tary cutting disk on the outer end of said arm.

8. In a machine of the class described, the combination of a revoluble wheel; a pin threaded thereto with its axis parallel to the axis of said wheel; a bifurcated support mounted on said pin and adjustable parallel to the axis of said wheel by the rotation of said pin; an oscillating arm mounted on said support; means for locking said arm in adjusted position; and a rotary cutting disk on the outer end of said arm.

9. In a machine of the class described, the combination of a revoluble wheel; a pin threaded thereto with its axis parallel to the axis of said wheel; a bifurcated support mounted on said pin and adjustable parallel tothe axis of said wheel by the rotation of said pin; an oscillating arm mounted on said support and adjustable lengthwise relatively thereto; means for locking said arm in ad justed position; and a rotary cutting disk on the outer end of said arm.

10. In a machine of the class described, the combination of a supporting frame; means for moving said frame in a straight path; a revoluble shaft transversely mounted in said frame; a wheel on the end of said revoluble shaft; and a plurality of rotary cutting disks mounted on said wheel with their faces inclined to the face of said revoluble wheel.

11. In a machine of the class described, the combination of a supporting frame; means for moving said frame in a straight path; a revoluble shaft transversely mounted in said frame; a wheel on the end of said revoluble shaft; a plurality of rotary cutting disks mounted on said wheel; means for adjusting the angular positions of said disks relatively to said wheel; and means for moving said disks perpendicularly to the face of said Wheel and at the same time retain the same in inclined relation to the face of said Wheel.

12. In a machine of the class described, the combination of a supporting frame; means for moving said frame in a straight path; a revoluble shaft transversely mounted in said frame; a Wheel on the end of said revoluble shaft; a plurality of rotary cutting disks mounted on said Wheel; means for adjusting the cutting edges of said disks at various distances from the face of said Wheel; and means for retaining all of said disks at the same inclination relatively to said Wheel.

13. In a machine of the class described, the combination of a revoluble Wheel having a rim and radial spokes; a forked support adapted to straddle said rim and extending inwardly therefrom, said support being provided With rim engaging members to prevent movement about its connection With said rim; means for moving said support transversely of said rim; an arm pivotally mounted on said support and having provision for end movement; and a rotary cutting disk on the end of said arm.

14:. In a machine of the class described, the combination of a revoluble Wheel having a rim and radial spokes; a forked support adapted to straddle said rim and extending inwardly therefrom, said support at its inner end bearing against one of said spokes; means for moving said support transversely of said rim; an arm pivotally mounted on said support and having provision for end movement; and a rotary cutting disk on the end of said arm.

15. In a machine of the class described, the combination of a revoluble Wheel having a rim; a pin extending transversely through said rim and threaded thereto; a forked support mounted upon said pin; means preventing movement of said support about the axis of said pin; means for moving said support transversely of said rim by the rotation of said pin; an ,arm adjustable end Wise and pivotally mounted on said support;

and a rotary cutting disk mounted on the outer end of said arm. 1

16. In a machine of theclass described,

the combination of a revoluble Wheel having" a rim; a pin extending transverselythrough said rim and threaded thereto; a forked support mounted upon said pin; means preventing movement of said support about the axis of said'pin; means for moving said support transversely of said rim by the rotation of said pin; an arm adjustable endvvise and pivotally mounted on said support; a shaft extending transversely of the outer end of ed on the outer end of said shaft.

17. In a machine of the class described, the combination of a revoluble Wheel having a rim; a pin extending transversely through i said arm; and a rotary cutting disk mount-5"] said rim and threaded thereto; a forked support mounted upon said pin; means preventing movement of said support about the axis of said pin; means for moving said conical head; and a rotary cutting disk mounted on the outer end of said enlarged conical head.

Signed by me at Milford, Massachusetts,

this 23d day of November, 1915.

EDWARD M. KING.

Witnesses:

WENDELL WILLIAMS, BLANOHE E. CELLEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. V 

